lidster



.md Model.) s sheets-sheet 1.

T. C. LIDSTER. RUUNDABOUT.

No. 448,056. Z f' lPafzell'ce'd Mar. 10, 1891.

3 Sheets--Sheet 3.

(No Model.)

T,l C. LIDSTER.

ROUNDABOUT.

Patented Mar. 10, 1891.

W'nesses:

i UNITED STATES,

ATENT Erice.

'rHOMAs coussins LIDsTER, or HULL, ENGLAND.

ROUNDABOUT.

SPECIFICATION forming part of Letters Patent No. 448,056, dated March 10,1891.

Application filed August 9,1889. Serial No. 320.812. (No model.) Patented in England November 15, 1887, No. 15,614; in Belgium May 11,1888, No. 81,763, and in France May 28,1888,No.190,837.

To @ZZ whom it may concern:

Be it known that I, THOMAS Coussins LID- s'rER, a subject of the Queen of Great Britain, residing at No. 7 3 Buckingham Street, Holderness Road, Hull, Yorkshire, England, have invented certain new and useful Improvements in Roundabouts, (for which Letters Patent have been granted to me in the following countries, viz: in Great Britain, No. 15,614, dated November 15, 1887 in Belgium, No. 81,768, dated May 11, 1888, and-iu France, No. 190,837, dated May 28, 1888,) of which the following is a specification.

The object of my invention is to apply an undulatory or wave motion to a roundabout, so that the occupants of boats or seats attached thereto may be subjected to a motion analogous to that produced by the waves of the sea, the degree of said motion being varied at will.

In order that my invention may be the better understood, I have appended the accompanying two sheets of drawings, in which- Figure l represents an elevational View of the device or contrivance made according to my invention, and Fig. 2 a part sectional plan of same on line A B, Fig. l. Fig. 3 represents a sectional elevation; Fig. 4, a top plan of the device with the disk hereinafter referred to removed. Fig. 5 is a sectional elevation of the machine complete, and Fig. 6 a sectional elevation of the lifting-gear.

Corresponding parts are indicated by similar letters of reference throughout the several views.

In carrying out my invention I employ a disk A, attached to a central spindle or shaft B, the lower extremity of which is provided with a spherical termination C, Fig. 8, arranged to work within a suitable divided cup D, forming a ball-and-socket joint. The lower edge a, Fig. 3, of the diskA bears upon the edge of a circular tube E, arranged to it freely within the framing F. The disk A and central spindle B are driven by a horizontal geared wheel G, to the upper part of which is att-ached a hollow shell H, provided with a slot s with a sliding bearing, so that the combined elliptical and circular motion of the disk may be fully compensated.

The horizontal geared wheel G is driven by a pinion P, to which motion is transmitted by means of the shaft S and miter' or bevel wheels K or any suitable method of transmittin g motion. lThe shell II is provided with vertical rollers I, bearing against the inner surface of the circular tube E. Two spiral springs r serve to balance the weight of the boats or other form ofy vehicle for carrying passengers when such vehicles are at the lowest part of the wave motion. Bars or beams L are adapted radially in the disk A, to the free extremities of which are attached or suspended the boats or other form of vehicles above mentioned.

It is evident that a regular wave motion may be obtained by the combined revolution of the disk A around its central spindle B and the circular motion of the disk around the edge of 'the tube E, the degree of motion being varied by raising or lowering the tube E. For instance, when the tube E is raised to its full extent the disk A hasa circular movement only in ahorizontal plane, as shown by the dotted lines, Fig. 3. It follows, therefore, that the raising or lowering of the tube F. will vary the degree of the undulatory or wave motion, and I prefer toiaccomplish this by means of screw-jacks consisting of screws V, held in stands U androtated by pinions W, which receive motion from the wheel X, journaled upon the central portion and in its turn receiving motion from the pinion Y, bevelgears b, and the shaft Zgor other equivalent lifting devices may be used.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is- 1. In a roundabout, the combination of a disk A, having radial arms carrying vehicles or conveyances and having a lower edge d, adapted to bear upon the upper edge of an adjustable tube or cylinder, a spindle B, supporting said disk and having its lower end C shaped spherically to form part of a ball-andsocket joint and having an intermediate bearing adapted to slide in a slot s, a stand supported upon the base or frame and terminating at its upper end in a cup D, adapted to form a ball-andsocket joint with thespindle end C, the gear-wheel G, journaled upon said ICO stand and carrying' a shell H, surrounding theeup D and having; a slot s, and having radlal projections in which are journaled vertical friction-rollers bearing` internally on a r1 m or .fiange of an adjustable tube oreylinder E, surrounding' the shell H, rollers I, and Wheel G, and made adjustable Within afrainlng and having its upper edge adapted to support the disk A, the frame F, surrounding the tube IE, means to drive the Wheel G, and means to raise, lower, and hold the tube or cylinder E, substantially as set forth.

2. In a roundabout, the combination, with the disk carried upon a spindle adapted to assume an inclined position While rotating; with said disk, of a tube or cylinder E, adjustable in elevation and having` its upper edge adapted to support said disk, substantially as set forth.

In testimony that I elaiin the foregoing as my invention I affix4 my signature, in presence of two Witnesses, this 2d day of May, 1889.

THOMAS COUSSINS LIDSTER.

Witnesses:

ROBERT MATsoN, CHARLES HENRY LANCASTER. 

